Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2018 3 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2018   06:30:46   (  -0.01,-135.12) (  -0.07,-135.55)   49.04                80
 03/15/2018   18:28:57   (   0.01,-135.05) (   0.03,-135.11)    6.99                80
 03/18/2018   06:29:56   (  -0.01,-134.95) (   0.04,-134.71)   27.70                80
 03/19/2018   18:46:08   (   0.00,-134.91) (   0.98,-139.27)  497.02                80
 03/20/2018   18:28:08   (   0.01,-134.87) (  -0.15,-134.28)   67.95                80
 03/22/2018   06:44:28   (   0.00,-134.79) (  -0.92,-138.86)  464.47                80
 03/23/2018   06:26:28   (  -0.00,-134.75) (   0.21,-133.87)   99.87                80
 03/24/2018   18:42:39   (  -0.01,-134.69) (   0.80,-138.44)  426.57                80
 03/25/2018   18:24:39   (  -0.00,-134.64) (  -0.27,-133.43)  137.32                80